USGS Streamgage 13015000
Gros Ventre River at Zenith, WY
Gros Ventre River at Zenith, WY is USGS streamgage 13015000 in Wyoming, monitoring river discharge in hydrologic subbasin 17040102. It drains a watershed of about 683 square miles. Discharge records at this site go back to 1917. Typical flow runs near 263 cfs in July and 134.9 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Wyoming
- Drainage area
- 683 sq mi
- Gauge elevation
- 6,316 ft
- Subbasin (HUC-8)
- 17040102
- Coordinates
- 43.55722, -110.76278
- USGS site number
- 13015000
- Records begin
- 1917-01-01 (109 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 109 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
Only 11 of 12 months have enough record to summarize; the rest are omitted.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| February | — | 104.7 | — | |
| March | — | 96.9 | — | |
| April | 42.2 | 134.9 | 297.8 | |
| May | 177.3 | 642.7 | 1,828.7 | |
| June | 177.1 | 1,052.4 | 2,562 | |
| July | 13.9 | 263 | 1,174.2 | |
| August | 3.5 | 44.8 | 329.9 | |
| September | 0.2 | 32.9 | 148.4 | |
| October | — | 63.4 | — | |
| November | — | 67 | — | |
| December | — | 29.5 | — |
All values in cubic feet per second (cfs).